Planning (a):
Aim:
In this experiment, we are going to investigate the reaction between NaOH and HCl. The aim of the experiment is to find the rate equation for the reaction.
The rate equation has the general form:
Rate = k[NaOH]x[HCl]y
Rate : Speed of the reaction
k : Rate constant
[NaOH]x : NaOH raised to the power of x. The value for x can only be determined experimentally and is referred to as “the order of reaction with respect to…”, in this case, potassium permanganate.
[HCl]y : HCl concentration raised to some power y. Same criteria as those addressed for the potassium permanganate.
Method of Initial Rates:
In order to determine the speed of the reaction we are going to focus on the permanganate and simply equate the speed with the time it takes to use up the permanganate.
Rate = -∆[NaOH]/ ∆t
= -{[HCl] final - [NaOH] initial}/(tfinal – tinitial)
[NaOH] final = 0, and tinitial = 0
Rate = -(-[NaOH] initial/tfinal)
=......
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